Articulating Impact

  • This year I [delivered / led / contributed to] [project], which resulted in [measurable outcome].
    Impact statement with a measurable result
    "This year I led the migration to the new authentication service, which reduced login latency by 40% and eliminated a class of session-related bugs."
  • A key contribution was [X] — it enabled the team to [business outcome].
    Connecting your work to team or business value
    "A key contribution was the caching layer I built for the product catalogue — it enabled the team to reduce infrastructure costs by 30%."
  • Beyond my core deliverables, I [mentored / documented / improved] [X].
    Highlighting non-code contributions
    "Beyond my core deliverables, I onboarded two new engineers and documented the deployment process — reducing onboarding time from 2 weeks to 3 days."
  • I operated at a [level] standard in [area], as evidenced by [example].
    Levelling your performance claim with evidence
    "I operated at a Senior level in system design, as evidenced by my leading the architecture review for the new payments module."

Communicating Growth and Goals

  • An area I've grown in this year is [skill/area] — I can see this in [evidence].
    Naming growth with evidence
    "An area I've grown in is communicating technical decisions to stakeholders — I led 4 architecture reviews and received consistent positive feedback."
  • One area I want to develop further is [skill] — my plan is [concrete steps].
    Honest development goal with a plan
    "One area I want to develop is my knowledge of distributed systems — my plan is to lead our next service decomposition project and complete the MIT distributed systems course."
  • My goal for next year is to [specific ambition aligned with team/company direction].
    Forward-looking goal that aligns with the organisation
    "My goal for next year is to grow into a staff engineer role by leading a cross-team technical initiative and mentoring 1–2 mid-level engineers."

Phrases to Avoid

These common phrasings undermine your professionalism. Here are better alternatives.

Avoid "I worked really hard this year."
Better "This year I delivered [specific outcomes] — here are the three I'm most proud of."

"Working hard" is effort, not impact. Reviewers and managers respond to outcomes and evidence.

Avoid "I helped with a lot of things."
Better "My primary contributions were [X, Y, Z] — the highest-impact was [X] because [reason]."

"A lot of things" is vague and undersells your work. Prioritise and quantify your top contributions.

Avoid "I don't have any weaknesses."
Better "An area I'm actively developing is [X] — here's what I've done to address it."

Claiming no weaknesses is unconvincing and closes off the development conversation. Honest, planned self-improvement shows maturity.

Practice Exercises

Choose the most professional or correct phrase for each scenario.

Frequently Asked Questions

What is a "performance review" and how often do they happen?

A performance review is a formal assessment of an employee's contributions, growth, and goals — typically annual or bi-annual. Many tech companies add mid-year check-ins.

What does "levelling" mean in a performance review?

Levelling is assessing whether you're performing at, above, or below the expectations for your current level (e.g. Junior, Mid, Senior, Staff). Consistent above-level performance is the basis for promotion.

What is a "360 review"?

A 360 review collects feedback from peers, direct reports, and manager — giving a multi-directional view of performance, not just the manager's perspective.